Struct Line 

pub struct Line { /* private fields */ }

Component for a line entity — the physical path an elevator car travels.

In a building this is a hoistway/shaft. For a space elevator it is a tether or cable. For a metro or people-mover (with the loop_lines feature) it is a closed loop. The term “line” is domain-neutral.

A line belongs to exactly one GroupId at a time but can be reassigned at runtime (swing-car pattern). Multiple cars may share a line (multi-car shafts); collision avoidance is left to game hooks for Linear lines and enforced by headway clamping for Loop lines.

Intrinsic properties only — relationship data (which elevators, which stops) lives in LineInfo on the ElevatorGroup.

Implementations

impl Line

pub fn name(&self) -> &str

Human-readable name.

pub const fn group(&self) -> GroupId

Dispatch group this line currently belongs to.

pub const fn orientation(&self) -> Orientation

Physical orientation.

pub const fn position(&self) -> Option<&SpatialPosition>

Optional floor-plan position. For LineKind::Loop this is the geometric center of the loop; hosts derive a rendering radius from Self::circumference.

pub const fn kind(&self) -> &LineKind

Topology kind — linear axis or closed loop.

pub const fn is_loop(&self) -> bool

Whether this is a closed-loop line.

pub const fn linear_min(&self) -> Option<f64>

Lowest reachable position on a LineKind::Linear line. Returns None for LineKind::Loop — loops have no endpoints.

Replaces the former min_position() accessor. Callers that blindly dereferenced the old f64 should now decide whether they want Linear-only behavior (linear_min().expect("linear")) or to handle Loop explicitly.

pub const fn linear_max(&self) -> Option<f64>

Highest reachable position on a LineKind::Linear line. Returns None for LineKind::Loop.

pub const fn circumference(&self) -> Option<f64>

Total path length of a LineKind::Loop line. Returns None for LineKind::Linear.

pub const fn min_headway(&self) -> Option<f64>

Minimum forward distance between successive cars on a LineKind::Loop line. Returns None for LineKind::Linear.

pub const fn max_cars(&self) -> Option<usize>

Maximum number of cars allowed on this line.

Trait Implementations

impl Clone for Line

fn clone(&self) -> Line

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Line

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Line

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Line

fn eq(&self, other: &Line) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for Line

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl WorldQuery for &Line

type Item<'w> = &'w Line

The item yielded per entity.

fn fetch(world: &World, id: EntityId) -> Option<Self::Item<'_>>

Try to fetch data for a single entity. Returns None if missing.

fn contains(world: &World, id: EntityId) -> bool

Check component presence without extracting data.

impl StructuralPartialEq for Line